Mechanism for mounting motor of washing machine and washing machine using the same

Abstract

A mechanism for mounting a motor driving a drum to a tub of a washing machine, and a washing machine using the same are provided. The mechanism includes a motor located on the outer surface of a tub; at least one fixing member passing through a part of the motor and then fixed to the tub to fix the motor to the tub; and at least one isolator provided between the motor and the fixing member to prevent the fixing member from directly contacting the motor to prevent the vibration of the motor from being transmitted to the tub through the fixing member.

1. A mechanism for mounting a motor of a washing machine comprising:
 a motor located on an outer surface of a tub; 
 at least one fixing member passing through a part of the motor and then fixed to the tub for fixing the motor to the tub; and 
 at least one isolator provided between the motor and the corresponding fixing members to prevent the fixing members from directly contacting the motor to prevent the vibration of the motor from being transmitted to the tub through the fixing members, 
 wherein the isolator is configured to provide an air gap between a head of the fixing member and a stator of the motor, 
 wherein each of the isolators includes: 
 a spacer provided between the head of the fixing member and the tub to support the fixing member; and 
 a bushing provided between the spacer and the motor to absorb the vibration of the motor, 
 wherein the spacer includes a flange protruded from the outer surface thereof in the radial direction; and 
 the bushing includes a recess provided in the inner surface thereof to receive the flange. 
 
   
   
     2. The mechanism as set forth in  claim 1 , wherein the spacer is made of a metal or synthetic resin material. 
   
   
     3. The mechanism as set forth in  claim 1 , wherein the bushing is made of elastic rubber. 
   
   
     4. The mechanism as set forth in  claim 1 , wherein the spacer separates the head of the fixing member from the motor. 
   
   
     5. The mechanism as set forth in  claim 1 , wherein the spacer separates the fixing member from the bushing. 
   
   
     6. The mechanism as set forth in  claim 1 , wherein the spacer is inserted into the bushing by push fit. 
   
   
     7. The mechanism as set forth in  claim 1 , wherein the bushing is inserted into a hole of the motor by push fit. 
   
   
     8. The mechanism as set forth in  claim 1 , wherein the bushing includes at least one enlarged part extended from the outer cylindrical surface thereof in the radial direction and contacting the inner surface of a hole of the motor, through which the fixing member passes. 
   
   
     9. The mechanism as set forth in  claim 8 , wherein the enlarged part is provided on upper and lower portions of the bushing. 
   
   
     10. The mechanism as set forth in  claim 1 , wherein the flange is provided at one end of the spacer such that the flange contacts the tub to disperse the force of the fixing member. 
   
   
     11. A washing machine comprising:
 a case; 
 a tub provided in the case, and including at least one first hole provided in the outer surface thereof; 
 a drum rotatably provided in the tub; 
 a stator located on the outer surface of the tub, and including at least one second hole corresponding to the first hole; 
 a rotor connected to the drum by a driving shaft passing through the tub for rotating the drum through the driving shaft when power is applied to the stator; 
 at least one fixing member passing through the second hole and then inserted into the first hole to fix the stator to the tub; and 
 at least one isolator provided between the inner surface of the second hole and the fixing member to prevent the fixing member from directly contacting the stator to prevent the vibration of the stator from being transmitted to the tub through the fixing member, 
 wherein the isolator is configured to provide an air gap between a head of the fixing member and the stator, 
 wherein the isolator includes: 
 a spacer made of a metal or synthetic resin material and provided in the second hole to support the fixing member; and 
 a bushing made of an elastic material and provided between the outer surface of the spacer and the inner surface of the second hole to absorb the vibration of the stator. 
 
   
   
     12. The washing machine as set forth in  claim 11 , wherein the spacer separates the fixing member from the bushing and the stator. 
   
   
     13. The washing machine as set forth in  claim 11 , wherein the spacer is inserted into the bushing by push fit, and the bushing is inserted into the second hole by push fit. 
   
   
     14. The washing machine as set forth in  claim 11 , wherein the bushing includes enlarged parts extended from upper and lower portions thereof in the radial direction and contacting the inner surface of the second hole. 
   
   
     15. The washing machine as set forth in  claim 11 , wherein:
 the spacer includes a flange protruded from the outer surface thereof in the radial direction; and 
 the bushing includes a recess provided in the inner surface thereof to receive the flange. 
 
   
   
     16. The washing machine as set forth in  claim 15 , wherein the flange is provided at one end of the spacer such that the flange contacts the tub to disperse the force of the fixing member.